I looked under the dash and ordered the Lingenfelter CTAP-01 box and the L480370108 plug and play harness I got a feeling that will save me a whole hell of a lot of aggravation

Thanks for getting me to look

Couple of tips:

Remove drivers seat for easier access.

To unplug the harness plug from clutch position sensor switch you must first remove a grey clip and then use a small pick to unlock second lock. It's pretty much blind and a total beach. Practice on the brake switch harness first it's the same and a lot easier to get at.

Question Merc. Could you use the brake harness and pedal to activate the CTAP-001 box on an A6. The idea being to hold say 1400rpm (or whatever rpm as long as it didn't push the car) and activate the 2 Step when the brake pedal lifted 5%?

I always hold rpm's against the brake pedal when I'm staged but when watching the tree I know I'm not holding consistant rpm's every pass.

Question Merc. Could you use the brake harness and pedal to activate the CTAP-001 box on an A6. The idea being to hold say 1400rpm (or whatever rpm as long as it didn't push the car) and activate the 2 Step when the brake pedal lifted 5%?

I always hold rpm's against the brake pedal when I'm staged but when watching the tree I know I'm not holding consistant rpm's every pass.

Not sure. I'll be talking to Jason from Lingenfelter probably tomorrow I'll ask. He is thinking I have RF interference. Sent him pic's, He talking moving the MSD module farther away from motor and putting stock wires back on.

Question Merc. Could you use the brake harness and pedal to activate the CTAP-001 box on an A6. The idea being to hold say 1400rpm (or whatever rpm as long as it didn't push the car) and activate the 2 Step when the brake pedal lifted 5%?

I always hold rpm's against the brake pedal when I'm staged but when watching the tree I know I'm not holding consistant rpm's every pass.

I would think you could put a manual switch in there and tie it into a line lock and the 2 step Pump the brakes up to hold it and release the button to launch it

I'm not sure of what settings to use on the Lingenfelter CTAP-01 box I would like it to release the 2 step close to the top of the clutch pedal any one have a idea what settings on the Lingenfelter CTAP-01 box to use ?

Also I installed the 2 step that was a piece of cake, but the harness plug on top of the clutch appears to be a real pain to get to, was hot out so I abandoned that for now .
Will probably attempt it again by the weekend. I had a clutch issue about 6 months ago and they put the ZL1 pedal assembly in mine don't think the brackets are much different, from what I was told its more of a clutch master difference

I'm not sure of what settings to use on the Lingenfelter CTAP-01 box I would like it to release the 2 step close to the top of the clutch pedal any one have a idea what settings on the Lingenfelter CTAP-01 box to use ?

Also I installed the 2 step that was a piece of cake, but the harness plug on top of the clutch appears to be a real pain to get to, was hot out so I abandoned that for now .
Will probably attempt it again by the weekend. I had a clutch issue about 6 months ago and they put the ZL1 pedal assembly in mine don't think the brackets are much different, from what I was told its more of a clutch master difference

If you want I can PM you cell number and you can call around 5:30 pacific and I'll help you.